scholarly journals Poly (Vinyl Butyral-Co-Vinyl Alcohol-Co-Vinyl Acetate) Coating Performance on Copper Corrosion in Saline Environment

Molecules ◽  
2020 ◽  
Vol 25 (3) ◽  
pp. 439
Author(s):  
Adriana Samide ◽  
Claudia Merisanu ◽  
Bogdan Tutunaru ◽  
Gabriela Eugenia Iacobescu
Keyword(s):  
Vinyl Acetate ◽  
Vinyl Alcohol ◽  
Electrochemical Impedance ◽  
Copper Surface ◽  
Copper Sample ◽  
Electrochemical Measurements ◽  
Copper Corrosion ◽  
Nacl Solution ◽  
Force Microscopy ◽  
Vinyl Butyral

Poly (vinyl butyral-co-vinyl alcohol-co-vinyl acetate) named further PVBA was investigated as a protective coating for copper corrosion in 0.9% NaCl solution using electrochemical measurements such as, electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization associated with atomic force microscopy (AFM). The PVBA coating on the copper surface (Cu-PVBA) was modeled in methanol containing PVBA. Its inhibitory properties against corrosion was comparatively discussed with those of the copper sample treated in methanol without polymer (Cu-Me) and of untreated sample (standard copper). A protective performance of PVBA coating of 80% was computed from electrochemical measurements, for copper corrosion in NaCl solution. Moreover, AFM images designed a specific surface morphology of coated surface with PVBA, clearly highlighting a polymer film adsorbed on the copper surface, which presents certain deterioration after corrosion, but the metal surface was not significantly affected compared to those of untreated samples or treated in methanol, in the absence of PVBA.

scholarly journals Poly(Vinyl Butyral-co-Vinyl Alcohol-co-Vinyl Acetate) Coating Performance on Copper Corrosion in Saline Environment

2019 ◽  
Author(s):  
Adriana Samide ◽  
Claudia Merisanu ◽  
Bogdan Tutunaru ◽  
Gabriela Eugenia Iacobescu
Keyword(s):  
Vinyl Acetate ◽  
Vinyl Alcohol ◽  
Electrochemical Impedance ◽  
Copper Surface ◽  
Copper Sample ◽  
Electrochemical Measurements ◽  
Copper Corrosion ◽  
Nacl Solution ◽  
Force Microscopy ◽  
Vinyl Butyral

Poly(vinyl butyral-co-vinyl alcohol-co-vinyl acetate) named further PVBA was investigated as protective coating for copper corrosion in 0.9 % NaCl solution using electrochemical measurements such as, electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization associated with Atomic Force Microscopy (AFM). The PVBA coating on the copper surface (Cu-PVBA) was modeled in methanol containing PVBA. Its inhibitory properties against corrosion was comparatively discussed with those of the copper sample treated in methanol without polymer (Cu-Me) and of untreated sample (standard copper). A protective performance of PVBA coating of 80 % was computed from electrochemical measurements, for copper corrosion in NaCl solution. Also, AFM images designed a specific surface morphology of coated surface with PVBA, clearly highlighting a polymer film adsorbed on the copper surface, which presents certain deterioration after corrosion, but metal surface was not significantly affected compared to those of untreated samples or treated in methanol, in the absence of PVBA.

Corrosion Protection and Composition of Galvanized Steel Substrates by Bis-[3-(triethoxysilyl)-Propyl]Tetrasulfide and Gamma-Aminopropyltriethoxysilane

2011 ◽  
Vol 299-300 ◽  
pp. 333-336 ◽  
Author(s):  
Feng Jun Shan ◽  
Guo Chao Qi ◽  
Chang Sheng Liu
Keyword(s):  
Corrosion Current Density ◽  
Electrochemical Impedance ◽  
Corrosion Current ◽  
Galvanized Steel ◽  
Nacl Solution ◽  
Force Microscopy ◽  
Atomic Force ◽  
Immersing Method ◽  
Steel Substrates ◽  
Total Impedance

Compound silane films were prepared on galvanized steel by immersing method using mixture of bis-[3-(triethoxysilyl)propyl]tetrasulfide and γ-aminopropyltriethoxysilane. The corrosion resistance of galvanized steel substrates was compared after treatment with bis-[3-(triethoxysilyl)propyl]tetrasulfide, γ-aminopropyltriethoxysilane and their mixture in 3.5%NaCl solution by potentiodynamic polarization and electrochemical impedance spectroscopy. The results indicated that corrosion current density of the mixed silane films was reduced evidently and self-corrosion pressure of that was shifted to left markedly and total impedance value of that increased about two orders of magnitude. The analytical characterisation was performed by Fourier transform infrared spectroscopy and atomic force microscopy. The results showed that bis-[3-(triethoxysilyl)propyl]tetrasulfide and γ-aminopropyltriethoxysilane were all connected with the former of films.

Electrochemical Investigation of Cyproconazole as Corrosion Inhibitor for Copper in Synthetic Seawater

2013 ◽  
Vol 763 ◽  
pp. 23-27 ◽  
Author(s):  
Ji Liu ◽  
Li Zheng ◽  
Hai Bo Gan ◽  
Huan Liu ◽  
Zhi Hua Tao ◽  
...  
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Corrosion Inhibitor ◽  
Inhibition Efficiency ◽  
Electrochemical Impedance ◽  
Copper Surface ◽  
Electrochemical Investigation ◽  
Nacl Solution ◽  
Adsorption Film ◽  
Synthetic Seawater

This paper presents the investigation of cyproconazole,namely2-(4-chlorophenyl)-3-cyclopropyl-1-(1H-1,2,4-triazol-1-yl) butan-2-ol,ascorrosion inhibitor for copper in synthetic seawater (3.5% NaCl solution).The inhibition action of cyproconazole on the corrosion of copper was investigated by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization.The selective desorption of Cyproconazole from copper surface was also studied by the differential polarization curves.EIS indicates that the inhibition formed an adsorption film on copper surface.The inhibition efficiency increases with increasing concentration.Polarization curves show that Cyproconazole acts as mixed-up inhibitor.

Solid terpolymer electrolyte based on poly(vinyl butyral-co -vinyl alcohol-co -vinyl acetate) incorporated with lithium salt and tetraglyme for EDLCs

2017 ◽  
Vol 135 (8) ◽  
pp. 45902 ◽  
Author(s):  
Mohd Zikrilhakim Bidin ◽  
Ng Hon Ming ◽  
Fatin Saiha Omar ◽  
K. Ramesh ◽  
S. Ramesh
Keyword(s):  
Vinyl Acetate ◽  
Vinyl Alcohol ◽  
Lithium Salt ◽  
Vinyl Butyral

DEVELOPMENT OF COMPOSITE MATERIALS BASED ON POLYURETHANE UREAS WITH FRAGMENTS OF A COPOLYMER OF POLY(VINYL BUTYRAL, VINYL ACETATE AND VINYL ALCOHOL) AND LYSOZYME

2020 ◽  
Vol 42 (2) ◽  
pp. 136-143
Author(s):  
K.V. Stashenko ◽  
◽  
T.V. Vislohuzova ◽  
N.A. Galatenko ◽  
R.A. Rozhnova ◽  
...  
Keyword(s):  
Composite Materials ◽  
Vinyl Acetate ◽  
Vinyl Alcohol ◽  
Vinyl Butyral

Atomic Force Microscopy Studies of the Film Surface Characteristics of Poly(vinyl acetate) Latexes Prepared with Poly(vinyl alcohol)

Langmuir ◽  
2003 ◽  
Vol 19 (23) ◽  
pp. 9968-9972 ◽  
Author(s):  
B. M. Budhlall ◽  
O. L. Shaffer ◽  
E. D. Sudol ◽  
V. L. Dimonie ◽  
M. S. El-Aasser
Keyword(s):  
Atomic Force Microscopy ◽  
Vinyl Acetate ◽  
Vinyl Alcohol ◽  
Film Surface ◽  
Surface Characteristics ◽  
Poly Vinyl Alcohol ◽  
Force Microscopy ◽  
Atomic Force
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